rotork nuclear actuators & environmental...
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Rotork Nuclear Actuators Sept 2005
Rotork Nuclear Actuators & Environmental Qualification
Toni WittamoreEngineering Manager
Rotork Nuclear Actuators Sept 2005
Agenda• Rotork?• Qualification• Re-Qualification • Why?• Resources• What did we learn?• Maintaining Qualification
Rotork Nuclear Actuators Sept 2005
Manufacturing Centers
Bath UK Bath UK Rochester USARochester USALeeds UKLeeds UKLuca ItalyLuca ItalyMadras IndiaMadras IndiaBangalore IndiaBangalore IndiaKuala Lumpur, MalaysiaKuala Lumpur, Malaysia
Approximately 1,000 employees worldwide
Rotork Nuclear Actuators Sept 2005
Principal factories & Offices
Rotork Nuclear Actuators Sept 2005
Rotork Nuclear Actuators Sept 2005
JordonControls
Actuation powered Actuation powered by: 3 phase, 1 phase, by: 3 phase, 1 phase, DC, Air, or Hydraulic, DC, Air, or Hydraulic, for on/off, modulating for on/off, modulating & failsafe valves& failsafe valves
Controls
Rotork Nuclear Actuators Sept 2005
Rotork Nuclear Actuators Sept 2005
1970 19901980 2000 2001 2002
IEEE382 -1972
IEEE382 -Draft
IEEE382 -1980
Marviken
Wyle Test
IEEE382 -1985
IEEE382 -1996
NA1, NA5, A
Product Qualification History
Rotork Nuclear Actuators Sept 2005
RE-QUALIFICATION
WHY??
Sept 2005
Project Driver
Sept 2005
Project Overview
• Re-qualification of the NA1, NA5 and AB variants to severe project requirements
• Design and qualification of pneumatic actuators
• Design and qualification of 2ndary gears• Re-qualification of the NA1, NA5 and AB
variants to the latest industry standards
Rotork Nuclear Actuators Sept 2005
Scope of Work• Full Environmental Qualification• Full Seismic Qualification
Rotork Nuclear Actuators Sept 2005
References
• IEEE382 - 1996 Actuator Qualification• IEEE323 - 1983 Environmental Qualification• IEEE344 - 1987 Seismic Qualification• IEEE112 - 1991 Motor Tests• NEMA MG-1 Motor Design
Rotork Nuclear Actuators Sept 2005
References
• 10CFR50 Appendix B - Quality Standards• 10CFR21 Non-Compliance Reporting• EPRI NP-5652 – Dedication of Commercial
Grade Components• NRC Generic Letters• Customer Specification
Rotork Nuclear Actuators Sept 2005
Mechanical Aging
• 2000 cycles• Future life extension for 4000 cycles• 33% rated torque during travel• Rated torque at the close position
Rotork Nuclear Actuators Sept 2005
Thermal Aging• 648 hours @ 125ºC • Activation Energy 1.0eV• Qualified Life
– 41.6 years @ 54ºC– 203.2 years @ 40ºC
Rotork Nuclear Actuators Sept 2005
Pressurisation Aging
• 15 cycles 0-65psig
Rotork Nuclear Actuators Sept 2005
Radiation
• 2.3E+08 Rads/2.3E+06Gy– Gamma radiation
Rotork Nuclear Actuators Sept 2005
Seismic Qualification
Rotork Nuclear Actuators Sept 2005
• Level 0.75g • Frequency Range 5-100-5Hz • Duration 90 mins in each orthogonal axes• SRV simulation > 8400 stress cycles
(Lungmen)• Chugging > 9000 stress cycles (Lungmen)
Rotork Nuclear Actuators Sept 2005
• RMF – ZPA = 8g (Lungmen) 1- SSE, 5 - OBE– ZPA = 6g (IEEE382-1996 fig 7) 1- SSE, 5 -
OBE• RIM
– Input = 5g (Ulchin)– Input = 4.5g (IEEE382-1996 fig 6)
Rotork Nuclear Actuators Sept 2005
• IEEE382-1985/1996 Case IV – MSLB inside containment
• Lungmen 100day LOCA
Rotork Nuclear Actuators Sept 2005
Resources/Requirements
• Nuclear Logistics & Kinectrics• Trentec, & Thermodyne• for• IEEE382-1985/1996• Ulchin 5 & 6• Lungmen NPS – Taiwan
Rotork Nuclear Actuators Sept 2005
• What did we learn?
Rotork Nuclear Actuators Sept 2005
• Beware the Nuclear EXPERT.
• No body knows your product like you -they just think they do!
Rotork Nuclear Actuators Sept 2005
• The IEEE standards do not cover all issues.• Everyone has a different opinion!!• Do Not consider starting testing until final
requirements are agreed.
Rotork Nuclear Actuators Sept 2005
• Do NOT under estimate the power of Steam.
- Don’t let it in.
Rotork Nuclear Actuators Sept 2005
‘Unique Double Sealing’
Rotork Nuclear Actuators Sept 2005
Maintaining Qualification
• ISO9000 Accredited• Dedication program to EPRI NP- 5652• 10CFR50 Appendix B Suppliers for safety related
components• Lot control and material traceability system for
safety related components• Engineering Change Procedures• Rotork Controls Inc – NUPIC Audited
Rotork Nuclear Actuators Sept 2005
Quality assurance
• Bath, Leeds, Rochester and Madras manufacturing plants all have independently approved quality systems complying with ISO 9001 for all products
Rotork Nuclear Actuators Sept 2005
Maintaining Qualification
• 10CFR21 Reporting• Supplier development
Rotork Nuclear Actuators Sept 2005
Questions?
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